Compare active chat alternatives to claude-opus-5-5, including capabilities, context, pricing, and API changes.
Alternatives to claude-opus-5-5
The original model is active. Ranking uses shared reported capabilities and modalities, then the closest known context window, then model ID. Unknown context differences sort last. Similar metadata does not establish equivalent output quality.
Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, json input, text output.
Original features not confirmed on this alternative: None. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
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Change the request model ID from claude-opus-5-5 to gpt-6-sol.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions. Adjust the endpoint and request body to the selected interface.
Original request
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Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, json input, text output.
Original features not confirmed on this alternative: None. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
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Change the request model ID from claude-opus-5-5 to gpt-6.1-sol.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions. Adjust the endpoint and request body to the selected interface.
Original request
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A verified request for this exact model. Add your API key and run it.
Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, text output.
Original features not confirmed on this alternative: json input. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
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Change the request model ID from claude-opus-5-5 to anthropic/claude-sonnet-5-5.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions, POST /v1/messages. The published API interfaces are unchanged.
Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, text output.
Original features not confirmed on this alternative: json input. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
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Change the request model ID from claude-opus-5-5 to claude-fable-5-1.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions, POST /v1/messages. The published API interfaces are unchanged.
Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, text output.
Original features not confirmed on this alternative: json input. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
Checking current pricing…
Change the request model ID from claude-opus-5-5 to claude-haiku-5-5.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions, POST /v1/messages. The published API interfaces are unchanged.
Matching features: Tool calling, Vision, Long context, JSON mode, Streaming, Reasoning, text input, image input, text output.
Original features not confirmed on this alternative: json input. Missing reports are unknown, not confirmed losses.
Context: 1000000 → 1000000 tokens (+0).
Checking current pricing…
Change the request model ID from claude-opus-5-5 to claude-opus-4-8.
Original interfaces: POST /v1/chat/completions, POST /v1/messages. Alternative interfaces: POST /v1/chat/completions, POST /v1/messages. The published API interfaces are unchanged.